Tools / Network
DNS Lookup
Look up A, AAAA, MX, TXT, NS, CNAME and SOA records for any domain — free. Queries authoritative nameservers for instant, uncached results — perfect for domain migration, email deliverability diagnostics and DNS propagation tracking.
The internet’s phone book
DNS (Domain Name System) translates human-readable domains like keydal.net to IP addresses like 185.x.x.x. Each record type has a specific purpose: A and AAAA map a hostname to IPv4/IPv6, MX decides which server receives email, TXT carries SPF/DKIM/DMARC authentication records, NS points to authoritative nameservers, and SOA holds zone start-of-authority metadata.
After a DNS change, old answers may remain in caches until TTL expires. Global propagation typically takes anywhere from 15 minutes to 48 hours.
About DNS lookups
It depends on TTL. TTL of 300s means 5 minutes; 86400s means 24 hours. Large ISP resolvers and public resolvers like 8.8.8.8 cache the old answer until TTL expires. This tool bypasses caches by querying authoritative nameservers.
Per RFC 5321, if MX is missing senders fall back to the A/AAAA record. This is fragile — always define an explicit MX in production.
All three are email-security records. SPF defines which servers may send mail on your behalf, DKIM adds a cryptographic signature to prove authenticity, and DMARC tells receivers what to do when SPF/DKIM fail. A correct setup dramatically reduces spam-folder delivery.
A points a hostname directly to an IP. CNAME is an alias to another hostname — resolution is delegated to that name. Per RFC 1034, CNAME cannot be used at the zone apex (@ / root); use ALIAS/ANAME instead.
Register your domain with KEYDAL
DNS management, WHOIS privacy and automatic renewal are included in all domain plans.
When should you use DNS Lookup?
The KEYDAL DNS Lookup tool is a browser-based utility that developers, system administrators, SEO specialists and enterprise technology teams use in their daily operations. It requires no installation, is free, and produces results instantly. It is designed so local teams can run audits without connecting to server environments and run analyses without touching production.
Typical scenarios include: post-migration verification, comparing domain or hosting providers, diagnosing customer issues, security auditing (pre-pentest reconnaissance), root-cause analysis of email deliverability problems, validating CDN or proxy configuration, surfacing technical audit data for SEO teams, and rapid information gathering during incident response. You can copy results as text and share them or paste them into internal documentation.
The KEYDAL infrastructure team provides web hosting, VPS, dedicated server management, server hardening, DNS configuration and SSL/TLS deployment services from Türkiye. Beyond these tools, we deliver server setup and operations support across Hetzner, OVHcloud, Contabo, DigitalOcean and Turkish providers.
Your queries are never stored on our servers
KEYDAL tools run stateless: domain names, IPs, URLs or other inputs are not persisted to any database. Logs are kept only for security purposes (rate limiting, abuse detection) and deleted within 30 days. For tools that handle sensitive data (tokens, API keys, JWTs), processing happens entirely in your browser — nothing is sent over the network. See our Privacy Policy for details.
All tools run over HTTPS with TLS 1.3 support. KEYDAL is a Türkiye-based technology company and complies fully with local data-protection regulations (KVKK) and GDPR principles.
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The KEYDAL free tools collection includes DNS lookup, WHOIS lookup, SSL certificate checker, HTTP headers analyzer, IP geolocation, uptime checker, JSON formatter, JWT decoder, Base64 encode/decode, QR code generator, meta tag analyzer and robots.txt tester. All browser-based, free, no installation.
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